> To: Oberheim group <
>; Oldberheim group <
> Sent: Saturday, January 21, 2012 12:01 PM
> Subject: Xpander problem, any help
> hi list,
> so, i found a bought a USA model
> works and sounds great... ...apart from voice 5,
> which, after its shipping to me, does not pass the auto tune test.
> sometimes the 'PW' ('pulse width', not 'parallel
> worlds'... ok, silly joke...) section of it fails, sometimes the Res section
> fails, sometimes all the section of voice 5 fail (except the vca section of
> voice 5 that never fails).
> clearly seems there is something wrong with voice
> 5. :D
> even if i activate the problematic voice, after its
> been automaticaly shut off by the Xpander OS, it sounds a bit different from the
> others in filter tone and tuning (of course, as it cannot be tuned,) and very very low in volume.
> another weird thing i noticed: when i direct voice
> 5 in its 'direct' output 5, then, from this output, i can hear all of the
> xpander voices (together with voice 5) but very low in volume.
> all the other direct outputs work as they should,
> for all the other voices.
> i performed software reset, re-sitted all ribbon
> cables and all of the chips in the voice 5 section of the xpander voiceboard
> without success,
> i also performed all the tests for the xpander
> (memory, vmemory, etc...) and all are ok, afaik.
> plus i resitted chip U106 which is responsible for
> the panning output section of voice 5 (after studying the service
> is there anything specific i should check
> everything seems connected.... i cannot resit ALL the chips in all boards
> obviously... but maybe i should resit a specific chip from another section of
> the xpander boards....
any ideas / help
> i really do not want to break anything inside the
> Xpander (i do not want to use a soldering iron, after all, everything seems in
> place), but i can remove and easily re-sit a specific chip or two, if needed of
> btw, after re-sitting the CEM 3374 Dual vco, of
> voice 5, the vco tuning of voice 5 almost always fails... it did not do that
> but i am very very certain i removed and resitted
> the chip without making any damage to it or its socket.
> (i have replaced chips in other analogue modules
> before without any problems...)
> btw, the seller is very honest and he insisted that
> the machine worked fine (all 6 vooices) before shipping, and i believe
> thanks in advance for your help!
> best regards,
> Bakis Sirros
> www. parallel - worlds - music. com
> www. facebook. com/ pages/Parallel-Worlds/192093934136476
> www. myspace. com/ parallelworldsmusic
> www. myspace. com/ interconnectedmusic
> www. myspace. com/ memorygeist
> www. DiN. org. uk
> www. musicamaximamagnetica. com
> www. vu-us. com